2018389900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{367}}^1\times {\mathrm{1279}}^1$

素因数の和:1703

約数の個数: 72

約数和(自身を含む): 4497489920

約数和(自身を除く): 2479100020

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 367, 430, 734, 860, 1075, 1279, 1468, 1835, 2150, 2558, 3670, 4300, 5116, 6395, 7340, 9175, 12790, 15781, 18350, 25580, 31562, 31975, 36700, 54997, 63124, 63950, 78905, 109994, 127900, 157810, 219988, 274985, 315620, 394525, 469393, 549970, 789050, 938786, 1099940, 1374925, 1578100, 1877572, 2346965, 2749850, 4693930, 5499700, 9387860, 11734825, 20183899, 23469650, 40367798, 46939300, 80735596, 100919495, 201838990, 403677980, 504597475, 1009194950, 2018389900]

約数ペア:

[(1, 2018389900), (2, 1009194950), (4, 504597475), (5, 403677980), (10, 201838990), (20, 100919495), (25, 80735596), (43, 46939300), (50, 40367798), (86, 23469650), (100, 20183899), (172, 11734825), (215, 9387860), (367, 5499700), (430, 4693930), (734, 2749850), (860, 2346965), (1075, 1877572), (1279, 1578100), (1468, 1374925), (1835, 1099940), (2150, 938786), (2558, 789050), (3670, 549970), (4300, 469393), (5116, 394525), (6395, 315620), (7340, 274985), (9175, 219988), (12790, 157810), (15781, 127900), (18350, 109994), (25580, 78905), (31562, 63950), (31975, 63124), (36700, 54997)]